eng Science and Education Publishing American Journal of Civil Engineering and Architecture 2328-3998 2018-02-02 6 2 46 53 10.12691/ajcea-6-2-1 AJCEA2018621 article Sidiki KABRE 1 Nafissatou SAVADOGO 1 Abdou LAWANE 1 Adamah MESSAN adamah.messan@2ie-edu.org 1 Institut International d’ingénierie de l’Eau et de l’Environnement (2iE), Laboratoire Eco-Matériaux de Construction (LEMC), Rue de la Science - 01 BP 594 Ouagadougou 01 - Burkina Faso This paper presents the feasibility of using locally available limestone Tuff in Burkina Faso as a partial replacement for CEM I artificial Portland cement. To this end, standard tests were carried out in the laboratory on mortars containing variable proportions of Tuff in partial substitution of CEM I cement. These include heat of hydration, setting time, total shrinkage, compressive strength, capillary absorption and resistance to acid attack. The experimental results obtained show that Tuff can be used as a natural pozzolan. It is also noted that the incorporation of Tuff into cement has virtually no influence on the transfer properties of mortars. However, at a rate above 15% partial substitution of CEM I, the mechanical strength of mortars is considerably reduced. This is probably linked to the finesse of the Tuff used. A finer shredding improved the mechanical activity index. However, we note a better resistance to acid attack (sulphuric acid that can come from acid rain) of mortars containing Tuff compared to mortar based on artificial Portland cement. All these results have shown that the Tuff used in this work can be a solution for reducing CO2 emissions in cement production and also in reducing the price of cement in Burkina Faso. http://pubs.sciepub.com/ajcea/6/2/1/ajcea-6-2-1.pdf Tuff Natural pozzolana Eco-cement Mortar Durability